A timer job runs a specific Windows service for SharePoint Server 2010. The timer job contains a definition of the service to run and specifies how frequently the service is started. Each timer job has its own default schedule for when the job runs. You can change the frequency with which each job runs on the Job Definitions page on the Central Administration Web site.
When you enable the SharePoint Server Publishing Infrastructure feature, the following timer jobs are enabled on the server that hosts the Central Administration Web site:
- Notification Timer Job Sends e-mail to the item owner when an item is about to expire.
- Scheduled Approval Publishes approved pages according to the specified start date and time. By default, this timer job runs every minute.
- Scheduled Unpublish Unpublishes pages according to the specified end date and time. By default, this timer job runs every minute.
- Variations Create Hierarchies Job Definition Creates a complete variations hierarchy by creating all variation sites and pages from the source variation site, based on the variation labels. By default, this timer job runs once a day.
- Variations Create Page Job Definition Creates pages on the target variation sites when the Automatic Creation option has been disabled and a user manually creates a new page. By default, this timer job runs every hour.
- Variations Create Site Job Definition Creates variation sites when the Automatic Creation option has been disabled and a user manually creates a new variation site. By default, this timer job runs every five minutes.
- Variations Propagate Page Job Definition Updates pages on target variation sites after a page on the source variation site has been approved or after it has been manually submitted by a user. By default, this timer job runs every hour.
- Variations Propagate Site Job Definition Creates variation sites when the Automatic Creation option is enabled. By default, this timer job runs every five minutes.
